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Giro Aries Spherical Bike Helmet

  • Based on 9 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Backcountry

Arrives Sep 16 – Sep 18
Order within 5 hours and 5 minutes
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Color: Matte Ano Blue


Size: Medium


Features

  • Structural Integrity - The proprietary AURA II Reinforcement Arch makes everything possible. These shatter-resistant, translucent twin bridges run throughout the helmet, providing structural integrity without adding unnecessary weight. Aries' ultra-low weight (~5% lighter than Aether), impressive cooling power and sleek, compact shape would not be possible without AURA II.
  • Spherical Technology - This unique ball-and-socket design, powered by Mips, helps redirect impact forces. Spherical Technology also boasts more comfort, improved airflow, and Progressive Layering (which mates two densities of EPS foam to address a wide range of impact energy). The results are clear: independent authority Virginia Tech has rated Aries #1 in reducing the risk of injury.
  • Cool Comfort - Deep internal channels connect with Aries' massive front and rear vents. This system provides a path for cool air to flow over the rider's scalp and exit the rear, taking excess heat with it. Aries also debuts our revolutionary DryCore sweat management system. A soft, silicone bead is hidden within the plush brow pad that redirects sweat away from the forehead and to the temples, where it can evaporate more easily
  • Streamlined Speed - When it comes to going fast, smaller truly is better. To craft Aries, we focused on reducing the frontal surface area to eliminate more drag. Add in tiny details like chamfered edges on the AURA II, and meticulously engineered internal channeling that actually speeds up the air as it exits the helmet, and Aries emerges as the climbing helmet that doesn't sacrifice speed, reducing aerodynamic drag by 4% over Aether Spherical.
  • Lighter, cooler, sleeker, plus all the added protection of spherical technology powered by MIPS and our new DryCore Sweat Management System: The Aries Spherical is like nothing before.

Description

A helmet that feels like it isn't there: the all-new Aries Spherical is like nothing before. Its sleeker form and lighter weight (only 270 grams in size medium, CE certification), deliver sensational comfort and cooling power. Spherical Technology, Giro's ball-and-socket design powered by Mips, adds protection by redirecting energy away from the head in certain impacts, and Progressive Layering with dual densities of Nanobead EPS foam adds more comprehensive energy management. 24 Wind Tunnel vents are maximized by the AURA II Reinforcement Arch, while a plush DryCore brow pad manages sweat and combines with a network of intricately engineered deep internal channeling to elevate comfort. From the proven reliability and adjustability of the Roc Loc 5+ Air fit system, to full lower hardbody coverage to enhance durability, to the meticulous production quality, the Aries is state-of-the-art performance, protection, and style.

Brand: Giro


Color: Matte Ano Blue


Age Range (Description): Adult


Size: Medium


Special Feature: adjustable


Brand: ‎Giro


Color: ‎Matte Ano Blue


Age Range (Description): ‎Adult


Size: ‎Medium


Special Feature: ‎adjustable


Model Name: ‎Aries Spherical


Outer Material: ‎Polycarbonate (PC)


Recommended Uses For Product: ‎Cycling


Item dimensions L x W x H: ‎8 x 8 x 8 inches


Inner Material: ‎Expanded Polystyrene


Item Weight: ‎10 Ounces


UPC: ‎196178248105


Item Package Dimensions L x W x H: ‎11.77 x 9.45 x 7.56 inches


Package Weight: ‎0.68 Kilograms


Item Dimensions LxWxH: ‎8 x 8 x 8 inches


Brand Name: ‎Giro


Warranty Description: ‎Any Giro helmet determined by Giro to be defective in materials or workmanship within one (1) year from the date of original purchase will be repaired or replaced, at Giro’s option, free of charge when received at the factory freight prepaid, together with proof of purchase.


Material: ‎Polycarbonate


Suggested Users: ‎unisex


Number of Items: ‎1


Manufacturer: ‎Giro


Part Number: ‎7149787


Included Components: ‎Bike Helmet


Sport Type: ‎Cycling


Date First Available: October 12, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 16 – Sep 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Wow! Just wow!
Color: Matte Ano Blue Size: Medium
First, I’m bad about replacing helmets every 5 years. Prior to purchasing this blue Giro Aries, I’d been using a Giro Aeon since 2014. Even though I wanted a helmet with MIPS, I couldn’t find any close in weight and ventilation to the Aeon. But it was time for an upgrade regardless of weight increases. My Aries was supposed to be delivered Tuesday, but instead was delivered later on Saturday. Not exactly PRIME shipping speed. But the helmet? Wow! Besides currently being rated as the #1 helmet in VaTech’s bicycle helmet safety ratings, the helmet is a vast improvement over the Aeon. Yes, it’s a little heavier than the Aeon, but not neck straining heavy. As for the ventilation and silicone sweat strip? Amazing! Being a lifelong Floridian, today’s sunrise ride involved 91% humidity with an actual temperature of 79F and a heat index of 87F. I’m a naturally sweaty person. I’m talking coming home completely soaked from just a November gathering with several games of corn hole. Today was a quite the soggy atmosphere for a ride. Anyway, the ventilation is noticeably improved across all areas of the helmet as compared the the long discontinued Aeon. And the anti-sweat strip? Not once…I repeat…not once did I have to do a helmet squeeze. Days like today usually involve a helmet squeeze every mile after a 15 minute warmup. No sweat dripping like a leaky faucet from the front of the helmet either. Yes, I still had to use my finger to squeegee my brow every mile, but that is far less inconvenient than leaning to one side and mashing my helmet into my forehead. I could wring my shirt out from all of the sweat, but this helmet didn’t require a single helmet squeeze during an hour long 17 MPH ride. The helmet fits my head like a glove as well. The new tensioner is an improvement over the Aeon as well. The Aeon clicked as the helmet tensioner was turned, which would result in steps of more tension. The new system is a continuous and smooth increase in tension as the dial is turned. No more “almost perfect” tension. The new system adjust easily in both directions, but remains in place when the dial is no longer being turned. Giro out did themselves with this helmet! Yes, it’s an expensive helmet. But consider it a 5 year insurance policy on hopefully keeping your brain intact. ... show more
Reviewed in the United States on July 30, 2023 by M. Daniel

  • Great fit, accurate sizing information, and great helmet overall
Color: Matte Ano Blue Size: Medium
I was a bit worried about buying a helmet online, but the sizing chart for this helmet is very accurate, and it fits great. The helmet also looks good, is very well-ventilated, and has one of the best independent testing scores for head injury protection. It's lightweight and comfortable to wear.
Reviewed in the United States on February 22, 2025 by kbuck

  • Great fit, but noisy
Color: Matte Ano Blue Size: Medium
I've had a series of Giro helmets, so I was pretty sure the fit would be good, and it was. Color is nice, and I was attracted to the added safety of the spherical system. However, one star off because there is wind noise above about 20 m/hr, which I have not experienced with other Giro helmets. Edit (this is a dig on Amazon, not Giro, I think)--Strangely, the reviews for this helmet only show the specific size and color. This is odd, given that all together are relevant. In other cases, reviews are grouped for similar, but meaningfully different products. ... show more
Reviewed in the United States on February 27, 2025 by matt-h

  • Very light and well ventilated but uncomfortable to me
Color: Matte Ano Blue Size: Medium
The helmet is very light and well ventilated, and I'm sure it's very safe, but it had sharp edges on the front padding which I had to smooth out and the back "ears" next to the adjustment shown in the photo kept digging into the back of my head when looking up from a road bike position. These two things made it very uncomfortable and in my opinion, not acceptable for a helmet with such a high price tag. I was going to return it but ended giving it up to someone who found it comfortable. ... show more
Reviewed in the United States on August 26, 2024 by Patricio Schurter Patricio Schurter

  • It is rated number one by the Virginia Tech Helmet Lab
Color: Matte Ano Blue Size: Medium
Let’s hope that I never have to test that rating out! In addition to the crash and impact performance, it is very well ventilated and quite light. I also purchased the integrated rear flare for visibility. I only with they also had an integrated strobe for the front.
Reviewed in the United States on July 23, 2024 by MJB

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